2 Chronicles 30
16 Ref And they took their places in their right order, as it was ordered in the law of Moses, the man of God: the priests draining out on the altar the blood given them by the Levites.
17 Ref For there were still a number of the people there who had not made themselves holy: so the Levites had to put Passover lambs to death for those who were not clean, to make them holy to the Lord.